Combined latch and stay



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w. H. FLEVVELL COMBINED LATCH AND STAY Filed May 6, 192a Joana-fez:

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Patented Dec. 7, 1926.

PATENT @FFECE.

WALTER H. FLEWELL, OF SIOUX CITY, IOWA.

COMBINED LATCH AND STAY.

Application filed May 6, 1926. Serial No. 107,159.

The invention relates to devices especially adapted to securing stormshutters and storm sash in open and closed positions, although it isequally applicable to other closures. t is a particular object toprovide an extremely simple device of this nature to hold hinged sashalternately at the opposite limits of its movement in a most positivemanner without liability of becoming casually loosened in the respectivepositions, and having the further advantage of serving as a lock of asafe character, by which a sash or the like may be held securely inclosed position, so that it cannot be opened by manipulation of thefastener from without. It is an especial aim to present an article ofthis character which may be produced entirely from sheet metal stampingswith the exception of the pintles.

Additional objects, advantages and features of invention reside in theconstruction, arrangement and combination of parts, as may be morereadily understood from the following description, and acompanyingdrawings, wherein,

Figure 1 is an elevational view of my 1nvention applied to a storm sash,the sash being represented in elevation and a window sill in crosssection.

Figure 2 is an elevational vlew from the left of Figure 1.

Figure 3 is a view similar to Figure 1 showing the part-s in openposition. D

Figure 4 is a top view of the parts 1n Figure 3. 7

" sash and sill as indicated. The mounting for the device on the sashand sill comprises in each instance metal plates 14;, apertured toreceive fastening screws 15, and having at one edge an outstanding ear16 at right angles to the body of the plate. By rivets I 17 the linksare pivoted upon the ears 16.

The mutual connection between the links comprises an elongated pintle18, wh ch projects at each end beyond the links, wh1ch are arranged inclose parallel relation. Be-

fore engagement of the pintle 18 in the links, a locking yoke 19 in theform of a rectangular frame stamped integrally from sheet metal isslipped over the links while held in close parallel relation, afterwhich 60 the pintle 18 is put in place.

The opening 20 through the yoke 19 has a minimum dimension equal to theaggregate thicknesses of the two links, so that they may slidetherethrough readily. One edge of each link may be rectilinear orotherwise formed, as economy or ornamentation may dictate, the linksbeing so connected that these edges will be presented at the same sideof the device when extended. The opposite edges are shaped each with arecess 21 closely adjacent the pivotal connection between the links, andthe yoke 19 is bent so that its opposite end portions will extend at anangle to each other. Thereby, when the device is extended as shown inFigure 3, the ends of the yoke may rest in the recesses 21 and thepintle 18 rests within the vertex of the angle formed by the bending ofthe yoke. The depths of the recesses 21 and the bending of the yoke 19are such as to permit the links to swing slightly beyond dead center inopen position, so that with the recessed edges aranged at the upperside, the weight of the sash bearing inwardly on the device will tend tohold it locked by the yoke 19 against further movement be yond deadcenter, and the force of the sash so applied that casual closing of thedevice thereby is obviated. The edge portions of the links extendingfromthe recesses 21 may be shaped as desired, so that when the link 12 ismounted upon the sill a short distance inwardly of the sash when closed,the edges 22 will be divergent downwardly. The length of the opening inthe yoke 19 is slightly less than the aggregate width of the two linksintermediately of the length of the link 13 when the parts are in theposition shown in Figure 1, so that by forcing the yoke 19 downwardlyupon the links while they are in such position, it will wedgeupon theirintermediate parts, tending to draw the link 18 inwardly and locking thesash 11 securely against opening movement. Release of the sash foropening from this position may be attained by simply lifting the yoke 19and pressing outwardly on the sash at the same time, so that the linksmay fall into the position shown in Figure 3.

length also enables attachment of the device to the sash or shuttersafely above the sill, and placement of the mounting on the sill asutlicient distance inwardly "from the sash or shutter, enabling rapidfitting of the device in a window and also minimizing liability ofsplitting the sill or sash by the tastening being too close to the edgeof the material therein.

Various modifications and adaptations of the device will be obvious fromthe disclosure, and it will be seen that when the appliance is mountedso that the links fold upwardly in the position shown in Figure 1,gravity will hold the yoke 19 in locked position thereon, and will alsoserve to hold the parts in extended position against casual closing ofthe sash. Simple blanks of sheet metal comprise all of the essentialparts of the device, and they are adapted to be produced economically,in accordance with ordinary shop practices.

link links being so constructed and arranged. that the links may swingbeyond dear centei 1n opening movement andsaid pin will engage againstthe yoke to stop said movement turther.

2. The structure of claim 1 in whichsaid links have recessed edges atone side and said yoke is bent so'that its ends extend in an angularrelation to each other, whereby its'ends may rest in the recesses andthepin may bear upon the concave side of the yoke.

The structure of'claim 1 in which one is longer than the other, wherebythe outerend of the short "link may be mounted upon a sash or the likeabove a window sill, and the longlink being mounted upon a window silland the parts in closed position may extend upwardly in close relationto a sash or the like.

In testimony whereof 'lafiix mysignature.

"WVALTER H. FLEVl- ELL.

described

